Apologies for the cross posting, just trying to cover the bases. I have been experimenting with a new camera and Sigma 8mm fisheye lens, creating HDR images for input to Jan Wienold's/Fraunhofer's evalglare program. On the really long exposures, you can actually see the back end of the lens and I guess some of the internals of the camera body itself. While this is exceedingly cool/interesting, I wonder if this is impacting the validity of the HDRs. When I create a Radiance HDR image (-vth) I get these nice round images with totally black corners. With the camera, I end up with a rectangular image and as I said some luminous pixels on the long exposures. Is this a problem, and how do folks deal with this in practice? Even if it's not a problem from an accuracy standpoint, aesthetically it's nice to produce photos that look like the Radiance fisheye output.
Thanks... ================ Rob Guglielmetti www.rumblestrip.org
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